software.amazon.awssdk.crt.utils

Class ByteBufferUtils

java.lang.Object

software.amazon.awssdk.crt.utils.ByteBufferUtils

public class ByteBufferUtils
extends Object

Utility Class with Helper functions for working with ByteBuffers

Method Summary

Modifier and Type	Method and Description
static ByteBuffer	deepCopy(ByteBuffer input) Allocates a new backing byte[] with a new ByteBuffer, and copies the contents of the input buffer to the copy.
static ByteBuffer	toDirectBuffer(ByteBuffer in) Guarantees a DirectByteBuffer from a ByteBuffer.
static int	transferData(ByteBuffer in, ByteBuffer out) Transfers as much data as possible from an input ByteBuffer to an output ByteBuffer

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

deepCopy

public static ByteBuffer deepCopy(ByteBuffer input)

Allocates a new backing byte[] with a new ByteBuffer, and copies the contents of the input buffer to the copy.

Parameters:

input - The ByteBuffer to copy

Returns:

A new ByteBuffer containing a deep copy of the input ByteBuffer.

transferData

public static int transferData(ByteBuffer in,
                               ByteBuffer out)

Transfers as much data as possible from an input ByteBuffer to an output ByteBuffer

Parameters:

in - The input ByteBuffer

out - The output ByteBuffer

Returns:

The number of bytes transferred

toDirectBuffer

public static ByteBuffer toDirectBuffer(ByteBuffer in)

Guarantees a DirectByteBuffer from a ByteBuffer. If the ByteBuffer is already direct, it will be returned and avoid an unnecessary copy.

Parameters:

in - Input ByteBuffer

Returns:

A ByteBuffer that is guaranteed to be directly allocated